Transparent PC Material Pump Lid with Black Rubber Lid Oring. Package include : 1 x Pump Lid 1 x Lid O-ring Specification: Color:Transparent Size :Details can be found in the size chart. Feature (1)This pool pump lid is compatible with Super II Pump SP3000 Series (e.g., SP3007(eeaz), SP3010(eeaz), etc.) and SP3000x Series (e.g., SP3005x7(az), SP3007x10(az), etc.). It is also compatible with Chlorine and Bromine Feeders (e.g., C250CF, C500CF, C1100CF, C1800CF). (2)Please note that the O-ring must be installed on the water pump, not the water cover. It is normal for the O-ring diameter on the cover to be slightly larger than the cover diameter. When replacing, thoroughly lubricate the seal and place it into the groove, then tighten the cover. Note: Pictures are for reference only, please refer to the real thing.